Eugen von Lommel 1900 Jahresbericht der Deutschen Mathematiker-Vereinigung

Eugen Cornelius Joseph von Lommel (19 March 1837,

Edenkoben Edenkoben () is a municipality in the Südliche Weinstraße district, in Rhineland-Palatinate, Germany. It lies approximately halfway between Landau and Neustadt an der Weinstraße. Edenkoben is one of the towns situated along the German Wine R ...

– 19 June 1899,

Munich Munich ( ; german: München ; bar, Minga ) is the capital and most populous city of the States of Germany, German state of Bavaria. With a population of 1,558,395 inhabitants as of 31 July 2020, it is the List of cities in Germany by popu ...

) was a German

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate caus ...

. He is notable for the

Lommel polynomial A Lommel polynomial ''R'm'',ν(''z''), introduced by , is a polynomial in 1/''z'' giving the recurrence relation :\displaystyle J_(z) = J_\nu(z)R_(z) - J_(z)R_(z) where ''J''ν(''z'') is a Bessel function of the first kind. They are given ...

, the

Lommel function The Lommel differential equation, named after Eugen von Lommel, is an inhomogeneous form of the Bessel differential equation: : z^2 \frac + z \frac + (z^2 - \nu^2)y = z^. Solutions are given by the Lommel functions ''s''μ,ν(''z'') and ''S' ...

, the Lommel–Weber function, and the Lommel differential equation. He is also notable as the doctoral advisor of the

Nobel Prize The Nobel Prizes ( ; sv, Nobelpriset ; no, Nobelprisen ) are five separate prizes that, according to Alfred Nobel's will of 1895, are awarded to "those who, during the preceding year, have conferred the greatest benefit to humankind." Alfr ...

winner

Johannes Stark Johannes Stark (, 15 April 1874 – 21 June 1957) was a German physicist who was awarded the Nobel Prize in Physics in 1919 "for his discovery of the Doppler effect in canal rays and the splitting of spectral lines in electric fields". This phen ...

. Lommel was born in

in the Palatinate,

Kingdom of Bavaria The Kingdom of Bavaria (german: Königreich Bayern; ; spelled ''Baiern'' until 1825) was a German state that succeeded the former Electorate of Bavaria in 1805 and continued to exist until 1918. With the unification of Germany into the German E ...

. He studied mathematics and physics at the

University of Munich The Ludwig Maximilian University of Munich (simply University of Munich or LMU; german: Ludwig-Maximilians-Universität München) is a public research university in Munich, Germany. It is Germany's List of universities in Germany, sixth-oldest u ...

between 1854 and 1858. From 1860 to 1865 he is teacher of physics and chemistry at the canton school of

Schwyz The town of Schwyz (; french: Schwytz; it, Svitto) is the capital of the canton of Schwyz in Switzerland. The Federal Charter of 1291 or ''Bundesbrief'', the charter that eventually led to the foundation of Switzerland, can be seen at the '' ...

. From 1865 to 1867 he taught at the high school in

Zürich Zürich () is the list of cities in Switzerland, largest city in Switzerland and the capital of the canton of Zürich. It is located in north-central Switzerland, at the northwestern tip of Lake Zürich. As of January 2020, the municipality has 43 ...

and was simultaneously

Privatdozent ''Privatdozent'' (for men) or ''Privatdozentin'' (for women), abbreviated PD, P.D. or Priv.-Doz., is an academic title conferred at some European universities, especially in German-speaking countries, to someone who holds certain formal qualific ...

at the

local university Local colleges and universities (LCUs) are higher educational institutions that are being run by local government units in the Philippines. A local government unit (LGU) maybe a barangay, a municipality, city, or a province that puts up a post-sec ...

as well as at the polytechnic school. From 1867 to 1868, he was appointed professor of physics at the

University of Hohenheim The University of Hohenheim (german: Universität Hohenheim) is a campus university located in the south of Stuttgart, Germany. Founded in 1818, it is Stuttgart's oldest university. Its primary areas of specialisation had traditionally been ...

. Finally he was appointed to a chair of experimental physics at

Erlangen Erlangen (; East Franconian German, East Franconian: ''Erlang'', Bavarian language, Bavarian: ''Erlanga'') is a Middle Franconian city in Bavaria, Germany. It is the seat of the administrative district Erlangen-Höchstadt (former administrative d ...

in 1868 and then went to the University of Munich in 1886, where he died in 1899.

Works by Lommel

* ''Studien über die Besselschen Funktionen,'' (Leipzig 1868) * ''Wind und Wetter,'' München (1873) * ''Das Wesen des Lichts,'' Leipzig (1874) * ''Über die Interferenz des gebeugten Lichts,'' Erlangen (1874–76) * ''Lexikon der Physik und Meteorologie,'' Leipzig (1882) * ''Die Beugungserscheinungen geradlinig begrenzter Schirme,'' München (1886) * ''Die Beugungsrescheinungen einer kreisrunden Öffnung,'' München (1884) * ''Lehrbuch der Experimentalphysik,'' Leipzig (8. A. 1902)

External links

References

* Robert Knott: Lommel, Eugen. In: ''Allgemeine Deutsche Biographie (ADB).'' Band 52, Duncker & Humblot, Leipzig 1906, S. 62–65. 1837 births 1899 deaths People from Edenkoben 19th-century German physicists People from the Palatinate (region) Ludwig Maximilian University of Munich alumni Ludwig Maximilian University of Munich faculty ETH Zurich faculty University of Erlangen-Nuremberg faculty {{Germany-academic-bio-stub